How to find your turbo part number
The number on your old turbo is the surest way to order the right replacement. Here is where to look and how to read it.
Last updated 2 October 2026
Where the ID plate is
Most turbos carry a small metal plate or a stamped pad on the compressor housing, the cooler aluminium side where air enters. It is often covered in oil and dust, so wipe it with a rag and some degreaser before taking a photo.
- Garrett: an aluminium plate riveted or bonded to the compressor housing, or numbers engraved directly into a flat pad on the casting.
- BorgWarner, KKK and TEL: a plate or sticker, usually on the compressor housing, with a long numeric part number.
- Holset: a plate showing the Holset assembly number, the vehicle maker's number and a serial number.
- IHI, Mitsubishi and Toyota (CT series): a plate or stamping with the maker's code.
Reading the plate
A typical plate carries three or four numbers. The one to search with is the part number.
| What you see | What it means |
|---|---|
| 753420-0003 | Garrett part number: six digits, a dash, four digits. The six digits identify the turbo design; the four after the dash identify the exact version. |
| 17201-0L030 | The vehicle maker's own number, here Toyota's style. |
| GT1749V, CT16, BV43 | The turbo model or family. Useful, but not precise enough to order with on its own. |
| S/N … | Serial number of your individual unit. Not needed for ordering. |
Versions with different numbers after the dash can differ in actuator setting or fittings, so they are not automatically interchangeable. If your number is close to one we list but not identical, ask us before ordering.
Why there are two numbers
The company that builds the turbo (Garrett, BorgWarner, Holset, IHI and so on) gives it one number, and the vehicle maker gives the same turbo another. For example, a Hyundai number such as 28201-2A400 corresponds to a Garrett GT1544V. Both identify the same part, and you can search our store with either.
Plate missing or unreadable?
Send us these on WhatsApp and we will identify the turbo for you:
- Vehicle make, model, variant and year
- Engine code and emission norm (BS4 or BS6), from the RC or the engine bay
- Clear photos of the turbo from both sides, including the actuator
Next: decide whether you need a complete turbo, a core or a repair kit.